Peng-Robinson equation of state

The Peng-Robinson equation of state is a mathematical model used in simulations to describe the behavior of gases and liquids. It is a widely used equation of state that takes into account the intermolecular interactions between molecules and the effects of temperature and pressure on their behavior. The equation was developed by D.Y. Peng and D.B. Robinson in 1976 and has since been used in various fields of science and engineering.From: Renewable Energies Offshore [2019], Development and validation of a Riemann solver in OpenFOAM® for non-ideal compressible fluid dynamics [2022]

Modular Process Simulators

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Published in Mariano Martín Martín, Introduction to Software for Chemical Engineers, 2019

Rubén Ruiz-Femenía, César Ramírez-Márquez, Luis G. Hernández-Pérez, José A. Caballero, Mariano Martín, José M. Ponce Ortega, Juan Gabriel Segovia

For this example, it was taken a simple simulation presented by Sandler [58], which was developed in the process simulator software Aspen Plus®. The considered process corresponds to the liquefaction of propane. This process starts with propane vapor at ambient conditions (298 K and 1 bar), which is compressed to 15 bar, cooled back down to 298 K, expanded through an adiabatic valve to 1 bar, and then the resulting gaseous and liquid streams are separated. Since propane is not an ideal gas throughout the process because of the conditions (high pressure and the presence of both a gas and a liquid), the Peng-Robinson equation of state will be used as the thermodynamic model, though other equations of state could have been chosen.

Enhancing the production of liquid hydrocarbons by coupling blast furnace gas (BFG) of steelwork with syngas in the GTL process

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Published in Petroleum Science and Technology, 2023

Rasul Karamlu, Fatemeh Bahadori

In this paper, the conventional GTL unit has been simulated, and the effects of coupling the BFG with the GTL unit have been investigated. In all simulations, Peng-Robinson equation of state has been used for the prediction of the thermodynamic properties of materials.

Peng-Robinson equation of state

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Modular Process Simulators

Enhancing the production of liquid hydrocarbons by coupling blast furnace gas (BFG) of steelwork with syngas in the GTL process